There Had to be a Second Trader...On the Grassy Knoll, Perhaps?

For starters, let's all keep in mind that these things don't happen in a healthy tape. The jitters from Greek rioting and possible contagion were the necessary preconditions for a crash like that.

Look at your keyboard...the "M" for million is not even next to the "B" for billion. There's an "N" in between the two keys. Dude, how fat is your finger?

If you were intentionally trying to chase the last of the individual investors from this market you couldn't have written a better script than "accidental trade vaporizes trillions in value from US stocks". People are just disgusted already.